... as opposed to having to hit the add task button and then the add email as task button?
Unfortunately, you can't drag & drop emails to the Todoist plugin to add it as a task, but we may consider adding such option in the future and you're welcome to add a request for it to our Votebox: http://todoist.com/Vote/
It would be very nice feature! :-)
It would be great if we can able to to this. Its so necessary for me. http://ndnc.net/